Read the Following Passage and Give the Answer:

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a. P, Q, R, S, T and U are travelling in a train.b. There are two reporters, two teachers, one professor and one Doctor in the group.c. The professor P is married to S who is a reporter.d. The Doctor is married to Q who is in the same profession and that ‘U’e. P, Q, R, S are two married couples and nobody in the group has same profession.f. ‘U’ is brother of R.

A. Which is the following is a pair of teachers?
1. S U
2. Q U
3. P T
4. None of these